论文部分内容阅读
过去,由于测距困难,量长精度低,隧道控制测量多采用三角锁(网)或主付导线环。随着科学技术的发展,短程光电测距仪已在工程测量中广泛应用,解决了长期以来量距劳动强度大,效率和精度低的问题。实践证明,利用红外光电测距仪测距不仅简捷,而且其相对测距精度可达1/10万以上。因此,隧道控制测量用光电测距,并组成多边形全闭合导线环(网)其效果是很理想的。
In the past, due to the difficulty of ranging, the accuracy of the amount of length and low, the use of triangular control of the tunnel lock (network) or the main pay wire loop. With the development of science and technology, short-range photoelectric range finder has been widely used in engineering surveying, which solves the problem of long distance measuring labor intensity, low efficiency and accuracy. Practice has proved that the use of infrared rangefinder distance measurement is not only simple, and its relative ranging accuracy of up to 1/100 million. Therefore, the tunnel control measurement with photoelectric distance, and the formation of polygon fully closed wire loop (net) its effect is very satisfactory.